//
//  DemoOO.h
//  ocdemo
//
//  Created by mengchang on 2021/6/6.
//  Copyright © 2021 JIENING ZHANG. All rights reserved.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface DemoOO : NSObject
+ (void)demoLogic;
@end

NS_ASSUME_NONNULL_END
